Here are a few reasons why being light-heartedness and humor is necessary at times:

1. 1. Humbleness: If we don't take ourselves too seriously, we cultivate a sense of humility. Recognizing that we are not infallible allows us to acknowledge our limitations, learn from our mistakes, and grow as individuals. 

   2. Stress Reduction: Taking ourselves too seriously can lead to unnecessary stress and pressure. By embracing a more lighthearted approach, we can reduce self-imposed expectations and perfectionism, leading to improved overall well-being and mental health.

   3. Adaptability: Taking ourselves less seriously allows us to navigate change and unexpected challenges with a greater sense of resilience and humor. This mindset enables us to bounce back more quickly from setbacks and find creative solutions.

   4. Increased Creativity: When we are less focused on perfection and overly serious, we open ourselves up to more imaginative and creative thinking. Playfulness and a willingness to take risks can lead to innovative ideas and solutions that may not have otherwise been discovered.

   5. Enjoy Life: It enables us to appreciate the present moment, find joy in the little things, and have a lighter, more positive outlook. It encourages us to laugh, have fun, and maintain a healthy work-life balance.

While certainly, there are times when seriousness and focus are necessary, finding a balance and being able to laugh at ourselves benefit our personal and professional lives. It promotes personal growth, resilience, and healthier relationships, while also adding a sense of joy and fulfillment to our daily experiences.